Synonyms for Federation Of Saint Kitts And Nevis (same or very similar meaning)
WordNet sense 1 (a country on several of the Leeward Islands; located east southeast of Puerto Rico; achieved independence from the United Kingdom in 1983):
Saint Kitts and Nevis, Saint Christopher-Nevis, St. Christopher-Nevis, St. Kitts and Nevis
From the ODE community, based on WordNet
add/edit